Update Locale-Codes to CPAN version 3.20

Update Locale-Codes to CPAN version 3.20

  [DELTA]

  VERSION 3.20 (2011-12-01)

  NEW CODE(s)

  Added limited support for deprecated codes

    The code2XXX, XXX2code, all_XXX_codes, and all_XXX_names functions now support retired codes. RT 71124

  Fixed capitalization

    The 'South Sudan' country was all caps. RT 71024

  Pod tests off by default

    The pod tests will not run at install time. RT 71122

  Codesets may be specified by name

    All codesets may be specified by a constant or by their name now. Previously, they were specified only by a constant.

  alias_code deprecated

    The alias_code function exists for backward compatibility. It has been replaced by rename_country_code.
    The alias_code function will be removed sometime after September, 2013.

  Code cleanup

    All work is now done in the central module (Locale::Codes). Previously, some was still
    done in the wrapper modules (Locale::Codes::*) but that is gone now.

  Added LangFam module

    Added Language Family codes (langfam) as defined in ISO 639-5.